On Tue, Mar 29, 2016 at 12:56 PM, Cong Wang [off-list ref] wrote:

On Mon, Mar 28, 2016 at 9:42 AM, Xin Long [off-list ref] wrote:

quoted

There is an issue when we use mavtap over team:
When we replug nic links from team0, the real nics's mc list will not
include the maddr for macvtap any more. then we can't receive pkts to
macvtap device, as they are filterred by mc list of nic.

In Bonding Driver, it syncs the uc/mc addrs in bond_enslave().

We will fix this issue on team by adding the port's uc/mc addrs sync in
team_port_add.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
---
 drivers/net/team/team.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 26c64d2..17ff367 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c

@@ -1198,6 +1198,9 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
                goto err_dev_open;
        }

+       dev_uc_sync_multiple(port_dev, dev);
+       dev_mc_sync_multiple(port_dev, dev);
+
        err = vlan_vids_add_by_dev(port_dev, dev);

You need to call dev_{uc,mc}_unsync() on error path, don't you?

I think so, I'm gonna post another patch as a fix for this one.
Thanks, Cong.